Oki B 2400 - Manual (Page 31)

Diagnostic Information 2-13
24xx
Service Checks
Abnormal Noise Service Check
Check the entire printer for loose parts.
FRU Action
1 Ribbon Cartridge Remove and reinstall the ribbon cartridge.
2 Printhead Disconnect the printhead cable(s).
Run the print test (do not fold or damage the
cables during the test). Go to
“Print Test” on
page 3-3 .
Replace the printhead, if the noise is gone.
3 Carrier Motor
Ribbon Drive
Mechanism Disconnect the carrier motor connector CN2
from the logic board. Turn the printer off and
then on.
If the abnormal noise is gone, look for a
problem with the carrier motor or ribbon drive
mechanism. Go to
“Carrier Service Check”
on page 2-16 .
4 Paper Feed
Mechanism Disconnect the paper feed motor CN1 from the
logic board.
Perform the Print Test. Go to “Print Test” on
page 3-3 .
If the abnormal noise is gone, look for the
problem in the paper feed mechanism.